James Boswell, Samuel Johnson (1799). “Life of Johnson: Including Boswell's Journal of a Tour to the Hebrides and Johnson's Diary of a Journey Into North Wales”, p.502
James Boswell, Samuel Johnson (1824). “The Life of Samuel Johnson, LL. D., Comprehending an Account of His Studies, and Numerous Works, in Chronological Order: A Series of His Epistolary Correspondence and Conversations with Many Eminent Persons; and Various Original Pieces of His Composition, Never Before Published; the Whole Exhibiting a View of Literature and Literary Men in Great Britain, for Near Half a Century During which He Flourished”, p.416
Samuel Johnson, Arthur Murphy, Francis Pearson Walesby (1825). “Essay on the life and genius of Dr. Johnson [by Arthur Murphy] Poems. Rasselas, prince of Abissinia. Letters”, p.348